CN204647224U - A kind of engine sprocket and automobile - Google Patents
A kind of engine sprocket and automobile Download PDFInfo
- Publication number
- CN204647224U CN204647224U CN201520336941.2U CN201520336941U CN204647224U CN 204647224 U CN204647224 U CN 204647224U CN 201520336941 U CN201520336941 U CN 201520336941U CN 204647224 U CN204647224 U CN 204647224U
- Authority
- CN
- China
- Prior art keywords
- sprocket wheel
- ring
- outer ring
- wheel outer
- sprocket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000009467 reduction Effects 0.000 claims abstract description 32
- 230000035939 shock Effects 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 208000004141 microcephaly Diseases 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Gears, Cams (AREA)
Abstract
The utility model provides a kind of engine sprocket and automobile, and wherein engine sprocket comprises: sprocket wheel inner ring; Sprocket wheel outer ring structure, sprocket wheel outer ring structure comprises: the sprocket wheel outer ring that external diameter is greater than sprocket wheel inner ring external diameter be positioned at sprocket wheel outer ring middle part, around sprocket wheel outer ring one week and the multiple gear teeth be fixedly connected with sprocket wheel outer ring; Be arranged between sprocket wheel inner ring with sprocket wheel outer ring, for being connected the shock ring of sprocket wheel inner ring and sprocket wheel outer ring; To be positioned on sprocket wheel outer ring and external diameter is greater than the baffle ring of sprocket wheel outer ring external diameter, the axial thickness of baffle ring is less than the axial thickness of sprocket wheel outer ring; And between baffle ring with the gear teeth and respectively with baffle ring and tooth contact engage noise reduction ring, the external diameter of engagement noise reduction ring is greater than the external diameter of baffle ring.Engine sprocket of the present utility model, can cushion the mesh impact of sprocket wheel and chain, reduces noise, absorbs the torsional vibration of crankshaft front end, improves chaindriven running uniformity, thus reduce chaindriven impact noise, improves chain drive system part life.
Description
Technical field
The utility model relates to automobile technical field, particularly relates to a kind of engine sprocket and automobile.
Background technique
Chain drive system carrys out transferring power by the engagement of chain link on special profile of tooth and chain, have accurately average ratios, compared with high transmission efficiency, compact structure little to the radial pressure of axle, to advantages such as the installation precision of axle are low, be a kind of mechanical transmission applied widely.Motor sprocket wheel is generally arranged on bent axle microcephaly, trunnion shaft front end and camshaft front end, and on oil pump input shaft, mainly comes drive cam shaft, oil pump and trunnion shaft by chain.Current existing sprocket wheel main structure as depicted in figs. 1 and 2, because of the torsional vibration of crankshaft front end in work, make the fluctuation of speed of crankshaft front end sprocket wheel larger, the mesh impact of chain and sprocket wheel is larger, the high rotating speed of the uneven characteristic of the motion of Chain conveyer itself (polygon effect) and trunnion shaft in addition, chain drive system can produce larger gearing noise, influential system life-span and travelling comfort.
Model utility content
The purpose of this utility model is to provide a kind of engine sprocket and automobile, the mesh impact of sprocket wheel and chain can be cushioned, reduce noise, absorb the torsional vibration of crankshaft front end, improve chaindriven running uniformity, thus reduce chaindriven impact noise, improve chain drive system part life.
According to the utility model aspect, a kind of engine sprocket is provided, comprises:
Sprocket wheel inner ring;
Sprocket wheel outer ring structure, described sprocket wheel outer ring structure comprises: sprocket wheel outer ring and the middle part being positioned at described sprocket wheel outer ring, the multiple gear teeth be fixedly connected with around one week, described sprocket wheel outer ring and with described sprocket wheel outer ring;
Be arranged between described sprocket wheel inner ring with described sprocket wheel outer ring, for being connected the shock ring of described sprocket wheel inner ring and described sprocket wheel outer ring, the external diameter of wherein said sprocket wheel outer ring is greater than the external diameter of described sprocket wheel inner ring;
Be positioned at the baffle ring on described sprocket wheel outer ring, the external diameter of described baffle ring is greater than the external diameter of described sprocket wheel outer ring, and the axial thickness of described baffle ring is less than the axial thickness of described sprocket wheel outer ring; And
Between described baffle ring with the described gear teeth and respectively with described baffle ring and described tooth contact engage noise reduction ring, the external diameter of described engagement noise reduction ring is greater than the external diameter of described baffle ring.
Optionally, described shock ring and described engagement noise reduction ring are quality of rubber materials; Described sprocket wheel inner ring, described sprocket wheel outer ring structure and described baffle ring are metal material.
Optionally, described baffle ring is press-fited by interference or welds and is connected with described sprocket wheel outer ring.
Optionally, described baffle ring and the one machine shaping of described sprocket wheel outer ring.
Optionally, the quantity of described baffle ring is two, lays respectively at the both sides of the described gear teeth, and and arranges predetermined distance between the described gear teeth.
Optionally, the quantity of described engagement noise reduction ring is two, lays respectively between described baffle ring and the described gear teeth.
Optionally, the external diameter of described engagement noise reduction ring is less than sprocket tooth root diameter of a circle.
The utility model embodiment also provides a kind of automobile, and described automobile comprises above-mentioned engine sprocket.
The beneficial effects of the utility model are: by the shock ring between sprocket wheel inner ring and sprocket wheel outer ring, reduce torsional vibration of shafting, improve chaindriven running uniformity, thus reduce chaindriven impact noise, by engaging the mesh impact that noise reduction ring can cushion sprocket wheel and chain between the gear teeth with baffle ring, reduce noise, thus improve chain drive system part life.
Accompanying drawing explanation
Fig. 1 represents engine sprocket sectional drawing in prior art;
Fig. 2 represents engine sprocket side view in prior art;
Fig. 3 represents the utility model embodiment engine sprocket sectional drawing;
Fig. 4 represents the utility model embodiment engine sprocket side view;
Fig. 5 represents the utility model embodiment engine sprocket and chain interoperation schematic diagram;
Fig. 6 represents the utility model embodiment engine sprocket schematic diagram.
Wherein in figure: 1, sprocket wheel inner ring; 2, shock ring; 3, sprocket wheel outer ring structure; 31, sprocket wheel outer ring; 32, the gear teeth; 4, baffle ring; 5, noise reduction ring is engaged; 6, outer plate; 7, inner plate; 8, chain roller; 9, sleeve; 10, bearing pin.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearly, below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in detail.
As shown in Fig. 3, Fig. 4 and Fig. 6, a kind of engine sprocket, comprising:
Sprocket wheel inner ring 1; Sprocket wheel outer ring structure 3, sprocket wheel outer ring structure 3 comprises: sprocket wheel outer ring 31 be positioned at sprocket wheel outer ring 31 middle part, around sprocket wheel outer ring 31 1 weeks and the multiple gear teeth 32 be fixedly connected with sprocket wheel outer ring 31; Be arranged between sprocket wheel inner ring 1 with sprocket wheel outer ring 31, for being connected the shock ring 2 of sprocket wheel inner ring 1 and sprocket wheel outer ring 31, the external diameter of its middle sprocket outer ring 31 is greater than the external diameter of sprocket wheel inner ring 1; Be positioned at the baffle ring 4 on sprocket wheel outer ring 31, the external diameter of baffle ring 4 is greater than the external diameter of sprocket wheel outer ring 31, and the axial thickness of baffle ring 4 is less than the axial thickness of sprocket wheel outer ring 31; And between baffle ring 4 with the gear teeth 32 and the engagement noise reduction ring 5 contacted with the gear teeth 32 with baffle ring 4 respectively, the external diameter of engagement noise reduction ring 5 is greater than the external diameter of baffle ring 4, is less than sprocket tooth root diameter of a circle.
Concrete, by the shock ring 2 between sprocket wheel inner ring 1 and sprocket wheel outer ring 31, realize the connection between sprocket wheel inner ring 1 and sprocket wheel outer ring 31, and shock ring 2 can reduce torsional vibration of shafting, improve chaindriven running uniformity, thus reduce chaindriven impact noise.Shock ring 2 contacts with the internal surface of sprocket wheel outer ring 31, and the gear teeth 32 are arranged on the outer surface of sprocket wheel outer ring 31.
As shown in Figure 5, before chain engages with the gear teeth 32, engagement noise reduction ring 5 contacts with inner plate 7 with the outer plate 6 of chain, outer plate 6 and inner plate 7 first gradually reduce and engage noise reduction ring 5, chain roller 8 is made to contact with sprocket indentations again, reduce the vibration in chain and the gear teeth 32 engagement process, thus reduce noise.Chain roller 8 is set on sleeve 9, and can rotate on sleeve 9, and sleeve 9 is set on bearing pin 10, bearing pin 10 and outer plate 6 interference fit, and sleeve 9 and inner plate 7 interference fit, chain roller 8 is between two inner plates 7.
By arranging baffle ring 4 on sprocket wheel outer ring 31, engagement noise reduction ring 5 can be fixed.The external diameter of engagement noise reduction ring 5 is less than sprocket tooth root diameter of a circle, and sprocket tooth root circle here refers to the circle by tooth groove root, mainly in order to allow outer plate 6 contact with engagement noise reduction ring 5 with inner plate 7, contacts with engagement noise reduction ring 5 without bearing pin 10.It should be noted that, the external diameter of engagement noise reduction ring 5 is greater than sprocket wheel standard pitch diameter and deducts carrier bar width, and the axial thickness of engagement noise reduction ring 5 must be greater than the inside and outside thickness of link plates summation of chain side, ensure outer plate 6 and inner plate 7 and engage contacting of noise reduction ring 5.The external diameter of baffle ring 4 should be less than sprocket wheel standard pitch diameter and deduct carrier bar width dimensions, avoids outer plate 6 to contact with baffle ring 4 with inner plate 7.Wherein, carrier bar width refers to the overall width of outer plate 6 and inner plate 7.When sprocket wheel standard pitch circle refers to chain and sprocket engagement, the circle at the axial connecting line place of the bearing pin 10 of chain, concentric with sprocket wheel.
In the utility model above-described embodiment, shock ring 2 and engagement noise reduction ring 5 are quality of rubber materials; Sprocket wheel inner ring 1, sprocket wheel outer ring structure 3 and baffle ring 4 is metal material.
Concrete, shock ring 2 and engagement noise reduction ring 5 adopt quality of rubber materials to make, and can reduce noise further.Sprocket wheel inner ring 1, sprocket wheel outer ring structure 3 and baffle ring 4 is metal material, can ensure the soundness of engine sprocket.
In the utility model above-described embodiment, baffle ring 4 press-fits by interference or welds and is connected with sprocket wheel outer ring 31, also can with sprocket wheel outer ring 31 one machine shaping.
Baffle ring 4 is arranged on sprocket wheel outer ring 31 by the assembling mode adopting interference to press-fit, and Placement is simple, without the need to adopting other connected element; Adopt the Placement of welding, be connected firmly and once-through; Adopt the mode of processing with sprocket wheel outer ring 31 one, both ensure that the soundness of connection, this Placement is simple simultaneously, once-through, and the quantity decreasing component.
In the utility model above-described embodiment, as shown in Figure 3 and Figure 5, the quantity of baffle ring 4 is two, lays respectively at the both sides of the gear teeth 32, and and between the gear teeth 32, predetermined distance is set; The quantity of engagement noise reduction ring 5 is two, lays respectively between baffle ring 4 and the gear teeth 32.
The quantity of engagement noise reduction ring 5 is two, be arranged at the both sides of the gear teeth 32, the engagement noise reduction ring 5 of side can be contacted with inner plate 7 with the outer plate 6 of chain side, and the engagement noise reduction ring 5 of opposite side can contact with inner plate 7 with the outer plate 6 of chain opposite side.And the quantity of baffle ring 4 is two, fix two engagement noise reduction rings 5 respectively, ensure to reduce vibration when chain engages with the gear teeth 32.
The utility model embodiment also provides a kind of automobile, comprises above-mentioned engine sprocket.
Above-described is preferred implementation of the present utility model; should be understood that the ordinary person for the art; can also make some improvements and modifications not departing under principle prerequisite described in the utility model, these improvements and modifications are also in protection domain of the present utility model.
Claims (8)
1. an engine sprocket, is characterized in that, comprising:
Sprocket wheel inner ring (1);
Sprocket wheel outer ring structure (3), described sprocket wheel outer ring structure (3) comprising: sprocket wheel outer ring (31) and the middle part being positioned at described sprocket wheel outer ring (31), the multiple gear teeth (32) be fixedly connected with around (31) one weeks, described sprocket wheel outer ring and with described sprocket wheel outer ring (31);
Be arranged between described sprocket wheel inner ring (1) with described sprocket wheel outer ring (31), for being connected the shock ring (2) of described sprocket wheel inner ring (1) and described sprocket wheel outer ring (31), the external diameter of wherein said sprocket wheel outer ring (31) is greater than the external diameter of described sprocket wheel inner ring (1);
Be positioned at the baffle ring (4) on described sprocket wheel outer ring (31), the external diameter of described baffle ring (4) is greater than the external diameter of described sprocket wheel outer ring (31), and the axial thickness of described baffle ring (4) is less than the axial thickness of described sprocket wheel outer ring (31); And
To be positioned between described baffle ring (4) with the described gear teeth (32) and the engagement noise reduction ring (5) contacted with the described gear teeth (32) with described baffle ring (4) respectively, the external diameter of described engagement noise reduction ring (5) is greater than the external diameter of described baffle ring (4).
2. engine sprocket as claimed in claim 1, it is characterized in that, described shock ring (2) and described engagement noise reduction ring (5) they are quality of rubber materials; Described sprocket wheel inner ring (1), described sprocket wheel outer ring structure (3) and described baffle ring (4) are metal material.
3. engine sprocket as claimed in claim 1, is characterized in that, described baffle ring (4) is press-fited by interference or welds and is connected with described sprocket wheel outer ring (31).
4. engine sprocket as claimed in claim 1, is characterized in that, described baffle ring (4) and the machine shaping of described sprocket wheel outer ring (31) one.
5. engine sprocket as claimed in claim 1, it is characterized in that, the quantity of described baffle ring (4) is two, lays respectively at the both sides of the described gear teeth (32), and and arranges predetermined distance between the described gear teeth (32).
6. engine sprocket as claimed in claim 5, it is characterized in that, the quantity of described engagement noise reduction ring (5) is two, lays respectively between described baffle ring (4) and the described gear teeth (32).
7. engine sprocket as claimed in claim 1, it is characterized in that, the external diameter of described engagement noise reduction ring (5) is less than sprocket tooth root diameter of a circle.
8. an automobile, is characterized in that, described automobile comprises the engine sprocket as described in any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520336941.2U CN204647224U (en) | 2015-05-22 | 2015-05-22 | A kind of engine sprocket and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520336941.2U CN204647224U (en) | 2015-05-22 | 2015-05-22 | A kind of engine sprocket and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647224U true CN204647224U (en) | 2015-09-16 |
Family
ID=54099980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520336941.2U Expired - Fee Related CN204647224U (en) | 2015-05-22 | 2015-05-22 | A kind of engine sprocket and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647224U (en) |
-
2015
- 2015-05-22 CN CN201520336941.2U patent/CN204647224U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |